Leica 13104800, 13104810, 13104940, 13104950 Leica Abbe Mark II Refractometer Contents

Leica ABBE MARK II Refractometer

Instruction Manual

Contents

1.0	INTRODUCTION	3
2.0	UNPACKING	3
3.0	POWER REQUIREMENTS	3
4.0	SET UP	3
4.1	Equipment Installation	3
5.0	CONTROLS	3
5.1	Variable Conditions in Taking Readings	4
5.2	Calibrating With Distilled Water	4
6.0	OPERATING INSTRUCTIONS	4
7.0	LEICA ABBE MARK II PLUS REFRACTOMETER	5
7.1	Computer Interface	5
7.2	Setting the Baud Rate	5
7.3	Printer Interface	5
7.4	Custom Programming	5

8.0REFRACTOMETER USE, TECHNIQUES AND

	REFRACTION PRINCIPLES	6
8.1	High Index/High Dispersion Samples	6
9.0	CALIBRATION WITH TEST GLASS	6
10.0	ILLUMINATOR BULB REPLACEMENT	7
10.1	Fuses	8
11.0	CARE AND CLEANING	8
12.0	SERVICING	8
13.0	SPECIFICATIONS	8
13.1	The following specifications refer only to the
	LEICA ABBE MARK II PLUS Refractometer	9

Explanation of Warning Symbols

5X20 250mA T/250V (Type 10480/10494)

CAUTION: Risk of electric shock

!CAUTION: (Refer to accompanying documents)

2.0 UNPACKING

The LEICA ABBE MARK II Refractometer has been carefully pack- aged for shipping. Before setting aside the packing materials, check the box(es) to assure that all items ordered have been received. Among the accessories in the refractometer box will be:

•a refractive index test glass (Catalog No. 10451)

•a 1/16" ( No. 4) Allen wrench (Catalog No. X30600)

•a bottle of 1- Bromonaphthaline for measuring solids (Catalog No. 10452)

•a dust cover (Catalog No. 10450-140)

Check the instrument and model number against the original order before discarding any packing materials. The original packing materials may be saved for future storage or transporta- tion of the refractometer.

3.0 POWER REQUIREMENTS

Models 13104800/13104940	115~ +/-10%, 50/60 Hz
Models 13104810/13104950	230~ +/-10%, 50/60 Hz

•Input power 25P max

•Indoor use only

•Altitude up to 2000m

•Temperature range 5OC to 40OC

•Pollution degree 2

•Installation category 2

•Max relative humidity 80% for temperatures up to 31OC decreasing linearly to 50% relative humidity at 40OC.

4.0 SET UP

The LEICA ABBE MARK II Refractometer is easy to use. Very little training is needed to set up and operate the instrument to obtain temperature and refractive index measurements.

4.1 Equipment Installation

The LEICA ABBE MARK II Retractometer must be used on a hard, stable and level surface such as a laboratory table or work bench.

CAUTION: As a safety precaution, the power cord has been grounded to the instrument base. Never use a ! 2-prong adapter between the power cord and the power

source; it will render the grounding feature ineffective.

CAUTION: Use of this equipment other than in the man- ner specified in this manual may result in reduction of safety protection.

1.0 INTRODUCTION

NOTE: Please read these instructions carefully before attempting to use the instrument.

This Instruction Manual is designed specifically for the LEICA ABBE MARK II Refractometer and describes proper set up, use and routine maintenance of the instrument. Sections 7.0 - 7.4 are applicable only to the LEICA ABBE MARK II Plus Refractometer.

The LEICA ABBE MARK II Refractometer is a durable bench-top instrument. It provides efficient, reliable and repeatable readings in three modes:

•% Solids (OBrix)

•% Solids (OBrix) temperature compensated or (BX-TC) and

•Refractive index (nD)

The LEICA ABBE MARK II Plus Refractometer can accommodate a custom program on the % Solids (OBrix) scale. This can be ac- complished with pre-programming or retrofitting at the factory.

5.0 CONTROLS

THE LEICA ABBE MARK II Refractometer controls are identified in Figure 1.

NOTE: The mode selector switch no longer functions as the on/off switch. The ON/OFF switch is located on the lower left front cover of the instrument above the Leica logo.

Power Switch:

The Power Switch is located in the lower right corner of the front

panel (Figure 1). = on 0 = off

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